Club 80-90 Forums

Hello,
Just got van back on road after a winter sat in my yard. Noticed a lot of oil in the air filter and around housing box. It was noticed that emmissions were on high side but got through MOT. Sorry if this has been answered before but I searched forum and wiki and couldn't find an answer.
Cheers
Ben

There is a crankcase breather that allows pressure to escape the engine and with the oily fumes goes back through the air filter and gets burned off in the combustion chambers, that is where your oil is coming from. Excess crankcase pressure MAY be coming from worn piston rings. So the pressure that should be pushing engine around is escaping into crankcase, as it burns off it will increase your emissions as you are burning oil It may be an idea to disconnect temporarily the crankcase breather hose that goes to your filter housing and block the hole in the filter housing then attach a length of hose from the crankcase that if you are being environmental and nice to bikers have some sort of catch can to pick up the drips, make sure it doesn't drip onto exhaust. See how it runs, check if there's a load of oily smoke coming out of there. I have heard of these being done in more modern vehicles cant see why it cant be done on one of these, unless anyone knows better? Oil and filter change wouldn't go amiss if it been laid up for a while too.